<template>
  <div class="app-container">
    <h2 style="text-align: center;">发布新课程</h2>
    <el-steps
      :active="3"
      process-status="wait"
      align-center
      style="margin-bottom:40px;"
    >
      <el-step title="填写课程基本信息" />
      <el-step title="创建课程大纲" />
      <el-step title="发布课程" />
    </el-steps>
    <div class="ccInfo">
      <img :src="publishCourseInfo.cover">
      <div class="main">
        <h2>{{ publishCourseInfo.title }}</h2>
        <p class="gray"><span>共{{ publishCourseInfo.lessonNum }}课时</span></p>
        <p><span>所属分类：{{ publishCourseInfo.subjectLevelOne }} — {{publishCourseInfo.subjectLevelTwo }}</span></p>
        <p>课程讲师：{{ publishCourseInfo.teacherName }}</p>
        <h3 class="red">￥{{ publishCourseInfo.price }}</h3>
      </div>
    </div>
    <div class="centerButton">
      <el-button @click="previous">返回修改</el-button>
      <el-button
        :disabled="saveBtnDisabled"
        type="primary"
        @click="publish"
      >发布课程</el-button>
    </div>
  </div>
</template>
<script>
import course from "@/api/edu/course"
export default {
  data() {
    return {
      saveBtnDisabled: false, // 保存按钮是否禁用
      courseId: "",
      publishCourseInfo: {

      }
    };
  },
  created() {
    console.log("publish created");
    //获取路由的课程id值
    if (this.$route.params && this.$route.params.id) {
      this.courseId = this.$route.params.id;
    }
    //调用接口方法根据课程id查询
    this.getPublishCourseInfo()
  },
  methods: {
    //根据课程id查询课程确认信息
    getPublishCourseInfo() {
      course.getPublishCourseInfo(this.courseId)
        .then((result) => {
          this.publishCourseInfo = result.data.coursePublish
        })
    },
    //返回上一步
    previous() {
      console.log("previous");
      this.$router.push({ path: "/course/chapter/" + this.courseId });
    },
    //课程发布
    publish() {
      console.log("publish");
      //1.发布前提示是否继续发布课程
      this.$confirm("请确定是否继续发布课程?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      }).then(() => {
        //2.选择继续发布
        //3.调用发布课程的接口
        course.publishCourse(this.courseId)
          .then((result) => {
            //提示信息
            this.$message({
              type: "success",
              message: "课程发布成功！",
            });
            //跳转到课程列表
            this.$router.push({ path: "/course/list" });
          })
      });


    },
  },
};
</script>
<style scoped>
.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #ddd;
  margin-bottom: 40px;
  position: relative;
}
.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}
.ccInfo .main {
  margin-left: 520px;
}
.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}
.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}
.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}
.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
.centerButton {
  text-align: center;
}
</style>